CN113564951A - High-strength compression-resistant corrugated carton - Google Patents
High-strength compression-resistant corrugated carton Download PDFInfo
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- CN113564951A CN113564951A CN202110871233.9A CN202110871233A CN113564951A CN 113564951 A CN113564951 A CN 113564951A CN 202110871233 A CN202110871233 A CN 202110871233A CN 113564951 A CN113564951 A CN 113564951A
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- Prior art keywords
- corrugated
- paper
- calcium carbonate
- high strength
- cellulose nanocrystals
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- Pending
Links
- 230000006835 compression Effects 0.000 title claims abstract description 23
- 238000007906 compression Methods 0.000 title claims abstract description 23
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 74
- 239000000835 fiber Substances 0.000 claims abstract description 39
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 35
- 229920002678 cellulose Polymers 0.000 claims abstract description 27
- 239000001913 cellulose Substances 0.000 claims abstract description 27
- 239000002159 nanocrystal Substances 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 16
- 239000013078 crystal Substances 0.000 claims abstract description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 20
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 20
- 239000000839 emulsion Substances 0.000 claims description 20
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 20
- 238000011084 recovery Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004537 pulping Methods 0.000 claims description 5
- 238000013329 compounding Methods 0.000 claims description 4
- 239000011268 mixed slurry Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000001815 facial effect Effects 0.000 claims description 2
- 239000004816 latex Substances 0.000 claims description 2
- 229920000126 latex Polymers 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000010009 beating Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000011049 filling Methods 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 229910017059 organic montmorillonite Inorganic materials 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
- 229910052901 montmorillonite Inorganic materials 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000010893 paper waste Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229920006025 bioresin Polymers 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
- D21B1/08—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paper; the raw material being rags
- D21B1/10—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paper; the raw material being rags by cutting actions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D13/00—Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood, or substitutes therefor
- B65D13/04—Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood, or substitutes therefor of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses a high-strength compression-resistant corrugated case, which relates to the field of improvement of paper materials and comprises a polygonal case body consisting of corrugated boards, wherein the corrugated boards comprise high-strength compression-resistant corrugated paper and surface paper compounded on the surface of the high-strength compression-resistant corrugated paper. The invention has the beneficial effects that: the superfine calcium carbonate crystal selected in the invention is in a chain or sheet shape, because the superfine calcium carbonate has the characteristics of filling depressions and growing along gaps, and the fiber in the slurry is a porous loose material and can provide growing and adsorption positions for the superfine calcium carbonate; the cellulose nanocrystals are connected with adjacent fibers through bridges, so that the bonding among the fibers is increased, the bonding area is increased, and the cellulose nanocrystals can be embedded into larger fibers, so that the superfine calcium carbonate and the cellulose nanocrystals are added into the slurry, and the superfine calcium carbonate, the cellulose nanocrystals and the fibers can be self-assembled to form a space network structure, which is beneficial to improving the strength and the bearing capacity of corrugated paper.
Description
Technical Field
The invention relates to the field of improvement of paper materials, in particular to a high-strength compression-resistant corrugated carton.
Background
Corrugated paper boxes are made of corrugated boards, are the most widely applied packaging products, have good physical and mechanical properties, decoration and printing adaptability, economical practicability and environmental protection, and are the first of various packaging products. In recent years, with the rapid development of economy and the rise of online shopping, the rapid development of industries such as logistics, printing, packaging and the like is greatly driven, so that the demand of people on corrugated cartons is increased more and more, and higher requirements on the strength and the pressure resistance of the corrugated cartons are provided.
For example, the invention patent of publication No. CN107354788B discloses a method for preparing regenerated corrugated base paper by using rosin modified starch to apply glue on the surface, which comprises crushing waste paper, soaking and pulping, soaking in potassium hydroxide solution to remove substances such as ink stains in the waste paper, soaking cottonseed hulls, crushing, mixing with waste paper pulp, adding sodium carboxymethyl cellulose and modified rosin glue emulsion, steaming under high pressure to obtain base paper pulp, spreading the base paper pulp on a paper net uniformly for papermaking, extruding, forming and drying to obtain corrugated base paper, putting the corrugated base paper into an automatic coating machine, and uniformly coating the modified glue solution on the base paper by using a coating rod for drying; various corrugated boards and corrugated cases are made by the adhesive. The corrugated case prepared by the method has good moisture-proof and waterproof effects, but has the defects of poor compression resistance, strength and the like.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention discloses a high-strength compression-resistant corrugated case, aiming at the problem that the strength and the compression resistance of the corrugated case in the prior art can not meet the requirements of people, and the high-strength compression-resistant corrugated case comprises a polygonal case body consisting of corrugated boards, wherein the corrugated boards comprise high-strength compression-resistant corrugated paper and surface paper compounded on the surface of the high-strength compression-resistant corrugated paper.
Preferably, the preparation method of the high-strength compression-resistant corrugated paper comprises the following steps:
the method comprises the following steps: putting the fiber recovery material into a cutting machine for crushing, pouring the crushed material into a potassium hydroxide solution for soaking for a period of time, taking out the crushed material, washing the crushed material by using running water, and putting the washed material into a pulper for pulping to obtain pulp;
step two: adding cellulose nanocrystalline and superfine calcium carbonate into the slurry for a period of time under stirring, then adding the modified rosin glue emulsion, and carrying out high-pressure heating reaction to obtain mixed slurry;
step three: preliminarily dehydrating the mixed pulp in a net part of a paper machine to form wet paper, and then extruding, forming and drying to obtain corrugated base paper;
step four: and compounding the multiple layers of corrugated base paper to prepare the high-strength compression-resistant corrugated paper.
Preferably, the fiber recycling material in the step one can be one or a combination of more of recycled corrugated paper, recycled bamboo fiber, recycled edge cutting paper and recycled carbon fiber.
Preferably, the concentration of the potassium hydroxide solution in the first step is 10 wt%, and the soaking time is 4-6 h.
Preferably, the freeness of the slurry of step one is 33-35 ° SR.
Preferably, the stirring speed of the pulper in the first step to the second step is 2000-2200 rpm.
Preferably, the mass ratio of the cellulose nanocrystals to the superfine calcium carbonate to the modified rosin gum emulsion in the second step is 1 (2-3) to 6-7.
Preferably, the total mass of the cellulose nanocrystal, the superfine calcium carbonate and the modified rosin size emulsion in the second step accounts for 8-12% of the mass of the slurry.
Preferably, the particle size of the superfine calcium carbonate is 60-100nm, and the crystal morphology of the superfine calcium carbonate is chain or sheet.
Preferably, the modified rosin size emulsion is an organic montmorillonite modified rosin size emulsion.
Preferably, in the second step, the cellulose nanocrystal and the superfine calcium carbonate are added into the slurry for 1-2h, then the modified rosin latex is added, and the reaction is carried out for 20-30min at the heating temperature of 120-.
Preferably, in the third step, the mixed pulp is primarily dewatered in a wire part of a paper machine to form a wet paper sheet, the wet paper sheet is extruded by an extruder to extrude moisture and form, and finally the extruded paper sheet is placed into a dryer to be dried at the low temperature of 10-14 ℃ to obtain the corrugated base paper.
Preferably, the moisture of the corrugating medium is controlled to 9-11%.
Preferably, the adhesives used in the compounding are cationic starch glues.
The corrugated case is produced by adopting the fiber recovery material, so that the waste fiber is recycled; and the potassium hydroxide solution with the concentration of 10 wt% is adopted to soak the fiber recovery material, so that the stains on the surface of the recovery material can be efficiently removed.
The superfine calcium carbonate crystal selected in the invention is in a chain or sheet shape, because the superfine calcium carbonate has the characteristics of filling depressions and growing along gaps, and the fiber in the slurry is a porous loose material and can provide growing and adsorption positions for the superfine calcium carbonate; the cellulose nanocrystals are connected with adjacent fibers through bridges, so that the bonding among the fibers is increased, the bonding area is increased, and the cellulose nanocrystals can be embedded into larger fibers, so that the superfine calcium carbonate and the cellulose nanocrystals can be self-assembled into a space network structure by adding the superfine calcium carbonate and the cellulose nanocrystals into the slurry, and the strength and the bearing capacity of the corrugated paper are improved.
According to the invention, the organic montmorillonite modified rosin glue emulsion is adopted, cations among montmorillonite layers increase the number of positive charges carried by the emulsion, and the free negatively charged fibers are easily adsorbed and form a tighter structure with a self-assembled space network structure, so that the stress concentration of the corrugated paper is changed, and the physical property and the mechanical property of the corrugated paper are improved.
Has the advantages that:
the technical scheme of the invention has the following beneficial effects:
(1) the superfine calcium carbonate crystal selected in the invention is in a chain or sheet shape, because the superfine calcium carbonate has the characteristics of filling depressions and growing along gaps, and the fiber in the slurry is a porous loose material and can provide growing and adsorption positions for the superfine calcium carbonate; the cellulose nanocrystals are connected with adjacent fibers through bridges, so that the bonding among the fibers is increased, the bonding area is increased, and the cellulose nanocrystals can be embedded into larger fibers, so that the superfine calcium carbonate and the cellulose nanocrystals are added into the slurry, and the superfine calcium carbonate, the cellulose nanocrystals and the fibers can be self-assembled to form a spatial network structure, which is beneficial to improving the strength and the bearing capacity of corrugated paper;
(2) the invention adopts the fiber recovery material to produce the corrugated case, thereby realizing the recovery and utilization of the waste fiber; the fiber recovery material is soaked by adopting a potassium hydroxide solution with the concentration of 10 wt%, so that stains on the surface of the recovery material can be efficiently removed;
(3) according to the invention, the organic montmorillonite modified rosin glue emulsion is adopted, cations among montmorillonite layers increase the number of positive charges carried by the emulsion, and the free negatively charged fibers are easily adsorbed and form a tighter structure with a self-assembled space network structure, so that the stress concentration of the corrugated paper is changed, and the physical property and the mechanical property of the corrugated paper are improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail and completely with reference to the examples of the present invention, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, provided in the examples, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
This embodiment discloses high strength resistance to compression corrugated box, includes the polygon box of compriseing corrugated container board, corrugated container board includes high strength resistance to compression corrugated paper and compound and is in the facial tissue on high strength resistance to compression corrugated paper surface.
As a preferred embodiment, the method for preparing the high-strength pressure-resistant corrugated paper comprises the following steps:
the method comprises the following steps: crushing the fiber recovery material in a cutting machine, pouring the crushed material into 10 wt% potassium hydroxide solution for soaking for 4-6h, taking out the crushed material, washing the crushed material with running water, cleaning the washed material, and pulping the cleaned material in a pulper with the stirring speed of 2000 plus materials and the speed of 2200rpm to obtain pulp with the pulping degree of 33-35 DEG SR;
step two: adding cellulose nanocrystalline and superfine calcium carbonate into the slurry for 1-2h at the stirring speed of 2000-2200rpm, then adding the modified rosin rubber emulsion, and reacting for 20-30min at the heating temperature of 120-140 ℃ and the pressure of 40-50kPa to obtain mixed slurry;
step three: preliminarily dehydrating the mixed pulp in a net part of a paper machine to form wet paper sheets, extruding the wet paper sheets through an extruder, extruding water and forming, and finally drying the extruded paper sheets in a dryer at a low temperature of 10-14 ℃ to obtain corrugated base paper;
step four: the multi-layer corrugated base paper is compounded to prepare the high-strength compression-resistant corrugated paper with the water content controlled between 9 and 11 percent.
As a preferred embodiment, the fiber recycling material in the first step can be one or a combination of several of recycled corrugated paper, recycled bamboo fiber, recycled edge cutting paper and recycled carbon fiber.
As a preferable embodiment, the mass ratio of the cellulose nano-crystal, the superfine calcium carbonate and the modified rosin glue emulsion in the second step is 1 (2-3) to (6-7).
As a preferable embodiment, the total mass of the cellulose nano-crystal, the superfine calcium carbonate and the modified rosin size emulsion in the second step accounts for 8-12% of the mass of the slurry.
As a preferable embodiment, the particle size of the superfine calcium carbonate is 60-100nm, and the crystal morphology of the superfine calcium carbonate is chain or sheet.
As a preferred embodiment, the modified rosin size emulsion is an organic montmorillonite modified rosin size emulsion.
As a preferred embodiment, the adhesive used in the compounding is a cationic starch glue.
As a more preferred embodiment, the surface of the high-strength compression-resistant corrugated paper and the surface paper is coated with bio-based paint.
As a more preferable embodiment, the bio-based paint is prepared from the following raw materials in parts by mass: 60-70 parts of bio-based resin, 10-20 parts of nano silicon dioxide, 20-30 parts of aliphatic amine, 5-8 parts of n-butyl glycidyl ether, 1-2 parts of sodium polyacrylate and 20-25 parts of butanol.
As a more preferred embodiment, the bio-based resin is one of a bio-based epoxy resin, a bio-based phenolic resin, or a starch resin.
In the embodiment, the corrugated case is produced by adopting the fiber recovery material, so that the waste fibers are recycled; and the potassium hydroxide solution with the concentration of 10 wt% is adopted to soak the fiber recovery material, so that the stains on the surface of the recovery material can be efficiently removed.
The superfine calcium carbonate crystal selected in the embodiment is in a chain or sheet shape, and because the superfine calcium carbonate has the characteristics of filling depressions and growing along gaps, the fiber in the slurry is a porous loose material and can provide growing and adsorption positions for the superfine calcium carbonate; the cellulose nanocrystals are connected with adjacent fibers through bridges, so that the bonding among the fibers is increased, the bonding area is increased, and the cellulose nanocrystals can be embedded into larger fibers, so that the superfine calcium carbonate and the cellulose nanocrystals can be self-assembled into a space network structure by adding the superfine calcium carbonate and the cellulose nanocrystals into the slurry, and the strength and the bearing capacity of the corrugated paper are improved.
According to the invention, the organic montmorillonite modified rosin glue emulsion is adopted, cations among montmorillonite layers increase the number of positive charges carried by the emulsion, and the free negatively charged fibers are easily adsorbed and form a tighter structure with a self-assembled space network structure, so that the stress concentration of the corrugated paper is changed, and the physical property and the mechanical property of the corrugated paper are improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a high strength resistance to compression corrugated box which characterized in that includes the polygon box of compriseing corrugated container board, corrugated container board includes high strength resistance to compression corrugated paper and compound and is in the facial tissue on high strength resistance to compression corrugated paper surface.
2. The corrugated carton with high strength and pressure resistance as claimed in claim 1, wherein the preparation method of the corrugated carton with high strength and pressure resistance comprises the following steps:
the method comprises the following steps: putting the fiber recovery material into a cutting machine for crushing, pouring the crushed material into a potassium hydroxide solution for soaking for a period of time, taking out the crushed material, washing the crushed material by using running water, and putting the washed material into a pulper for pulping to obtain pulp;
step two: adding cellulose nanocrystalline and superfine calcium carbonate into the slurry for a period of time under stirring, then adding the modified rosin glue emulsion, and carrying out high-pressure heating reaction to obtain mixed slurry;
step three: preliminarily dehydrating the mixed pulp in a net part of a paper machine to form wet paper, and then extruding, forming and drying to obtain corrugated base paper;
step four: and compounding the multiple layers of corrugated base paper to prepare the high-strength compression-resistant corrugated paper.
3. The corrugated carton according to claim 2, wherein the fiber recycled material in the first step is one or more selected from recycled corrugated paper, recycled bamboo fiber, recycled cut paper and recycled carbon fiber.
4. The corrugated carton according to claim 2, wherein the concentration of the potassium hydroxide solution in the first step is 10 wt%, the soaking time is 4-6h, and the beating degree of the pulp is 33-35 ° SR.
5. The corrugated carton as claimed in claim 2, wherein the stirring speed of the pulper in the first step and the second step is 2000-2200 rpm.
6. The corrugated carton with high strength and pressure resistance as claimed in claim 2, wherein the mass ratio of the cellulose nanocrystals, the ultrafine calcium carbonate and the modified rosin size emulsion in the second step is 1 (2-3) to (6-7).
7. The corrugated carton according to claim 2, wherein the total mass of the cellulose nanocrystals, the ultrafine calcium carbonate and the modified rosin size emulsion in the second step accounts for 8-12% of the mass of the pulp.
8. The high strength crush-resistant corrugated carton as claimed in claim 2 or 7, wherein the particle size of the ultrafine calcium carbonate is 60-100nm, and the crystal morphology of the ultrafine calcium carbonate is chain-like or sheet-like.
9. The corrugated carton with high strength and pressure resistance as claimed in claim 2, wherein in the second step, the cellulose nanocrystals and the ultrafine calcium carbonate are added into the slurry for 1-2h, then the modified rosin latex is added, and the mixture is reacted for 20-30min at a heating temperature of 120-140 ℃ and a pressure of 40-50kPa to obtain the mixed slurry.
10. The corrugated case of claim 2, wherein the mixed pulp is primarily dewatered in the wire section of the paper machine to form a wet sheet, the wet sheet is pressed by an extruder to extrude water and form, and the pressed sheet is dried in a dryer at a low temperature of 10-14 ℃ to obtain the corrugated paper.
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